CVE-2026-90250: Linux kernel · bpf, cgroup: Fix storage null-ptr-deref after replacing prog
Source GCVE Database
Not known to be exploited · fixed in a033c950f6731be88a7da98604ed78f302f15b80 : patch Linux kernel soon.
Data as of 30 Oct 2026, 18:33 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in a033c950f6731be88a7da98604ed78f302f15b80, 85785e7e2ebddcaa5c3b31bd3bcd83ae648985d4, 16c8321ee40c420f8e02e09515a5126682ddf4ea +3
Exploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
The vulnerability has been fixed in the Linux kernel by rejecting incompatible BPF program replacements that would cause uninitialized cgroup storage. Users should apply the official kernel updates that include this fix.
Description
A null pointer dereference vulnerability in the Linux kernel's BPF cgroup storage handling was fixed. The issue occurred when replacing an attached BPF program with another that uses per-CPU cgroup storage, leading to uninitialized storage and a kernel panic.
References
- nvd.nist.gov/vuln/detail/CVE-2026-90250 (opens in a new tab)
- git.kernel.org/stable/c/12feca126831556dc7fabe5a3ba28fbd328768b6 (opens in a new tab)
- git.kernel.org/stable/c/16c8321ee40c420f8e02e09515a5126682ddf4ea (opens in a new tab)
- git.kernel.org/stable/c/1ab3da12061d7ccb099f7e925fa2d865967a316a (opens in a new tab)
- git.kernel.org/stable/c/3f562c537e9ecf4bc5e206cfffc2cc047f1b7e94 (opens in a new tab)
- git.kernel.org/stable/c/85785e7e2ebddcaa5c3b31bd3bcd83ae648985d4 (opens in a new tab)
- git.kernel.org/stable/c/a033c950f6731be88a7da98604ed78f302f15b80 (opens in a new tab)